Description:Hypoallergenic and nickel freeBody Area: Ear， eyebrow， lip， nose， universalMaterial: 316L Stainless steelColor: colorfulGauge: 16G (1.2 mm)Hoop Diameter: 10 mm ( 3/8 inch)Ball Diameter: 3mmPackage Includes:1x Pair Horseshoe Septum Rings